TW200611714A - Water absorbing polysaccharide and a process for its production - Google Patents

Water absorbing polysaccharide and a process for its production

Info

Publication number
TW200611714A
TW200611714A TW094120523A TW94120523A TW200611714A TW 200611714 A TW200611714 A TW 200611714A TW 094120523 A TW094120523 A TW 094120523A TW 94120523 A TW94120523 A TW 94120523A TW 200611714 A TW200611714 A TW 200611714A
Authority
TW
Taiwan
Prior art keywords
polysaccharide
water
absorbent
production
water absorbing
Prior art date
Application number
TW094120523A
Other languages
Chinese (zh)
Other versions
TWI449543B (en
Inventor
Markus Frank
Frank Loeker
Scott Smith
Dirk Paepen
Original Assignee
Stockhausen Chem Fab Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE200410029713 external-priority patent/DE102004029713B4/en
Priority claimed from DE200410030182 external-priority patent/DE102004030182A1/en
Priority claimed from DE200510013893 external-priority patent/DE102005013893A1/en
Application filed by Stockhausen Chem Fab Gmbh filed Critical Stockhausen Chem Fab Gmbh
Publication of TW200611714A publication Critical patent/TW200611714A/en
Application granted granted Critical
Publication of TWI449543B publication Critical patent/TWI449543B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C08J3/075—Macromolecular gels
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2301/08—Cellulose derivatives
    • C08J2301/26—Cellulose ethers
    • C08J2301/28—Alkyl ethers

Abstract

The present invention relates to a process for producing a water-absorbent polysaccharide comprising the process steps: -the bringing into contact of an uncrosslinked polysaccharide with a polyphosphate or a polyphosphoric acid as crosslinking agent in the presence of water to form a polysaccharide gel; -crosslinking of the polysaccharide gel. The invention further relates to a water-absorbent polysaccharide obtainable by this process, a water-absorbent polysaccharide, a composite, a process for producing a composite, a composite produced by this process, the use of the water-absorbent polysaccharides or of the composites as well as the use of polyphosphates.
TW094120523A 2004-06-21 2005-06-21 Water absorbing polysaccharide and a process for its production TWI449543B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE200410029713 DE102004029713B4 (en) 2004-06-21 2004-06-21 Process for the preparation of a water-absorbing polysaccharide and its use
DE200410030182 DE102004030182A1 (en) 2004-06-22 2004-06-22 Water-absorbing polysaccharides for use e.g. in hygiene articles, flood prevention or food processing are obtained by using polyphosphates or polyphosphoric acids as crosslinking agents
DE200510013893 DE102005013893A1 (en) 2005-03-24 2005-03-24 Water-absorbing polysaccharides for use e.g. in hygiene articles, flood prevention or food processing are obtained by using polyphosphates or polyphosphoric acids as crosslinking agents

Publications (2)

Publication Number Publication Date
TW200611714A true TW200611714A (en) 2006-04-16
TWI449543B TWI449543B (en) 2014-08-21

Family

ID=34973048

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094120523A TWI449543B (en) 2004-06-21 2005-06-21 Water absorbing polysaccharide and a process for its production

Country Status (7)

Country Link
US (2) US8580953B2 (en)
EP (1) EP1769004B1 (en)
JP (2) JP5465832B2 (en)
KR (1) KR100863870B1 (en)
BR (1) BRPI0512259B1 (en)
TW (1) TWI449543B (en)
WO (1) WO2005123781A2 (en)

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US10059812B2 (en) 2014-02-24 2018-08-28 Nissan Chemical Industries, Ltd. Method for producing gel

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WO2005123781A3 (en) 2006-02-16
JP2014051663A (en) 2014-03-20
EP1769004A2 (en) 2007-04-04
EP1769004B1 (en) 2017-08-09
TWI449543B (en) 2014-08-21
BRPI0512259A (en) 2008-02-19
JP2008503600A (en) 2008-02-07
US8859758B2 (en) 2014-10-14
WO2005123781A2 (en) 2005-12-29
US20140018532A1 (en) 2014-01-16
KR100863870B1 (en) 2008-10-15
JP5465832B2 (en) 2014-04-09
KR20060095950A (en) 2006-09-05
US20080009616A1 (en) 2008-01-10
BRPI0512259B1 (en) 2017-09-12
US8580953B2 (en) 2013-11-12

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